<%--
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  User: desire
  Date: 2022/4/20
  Time: 10:07
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Title</title>
</head>
<body>
    <h1>喵~~~~</h1>
ModelAndView --> msg: ${msg}<br>
    model --> m: ${m}
    <hr>
Map--> mm: ${mm}
    <hr>
modelmap--> put:${put}<br>
modelmap--> addAttribute:${addr}<br>
</body>
</html>
